Support for wagon-jacks.



J. E. CAMP SUPPORT FOR WAGON JACKS. APPLICATION FILED FEB. 1. 1913.

1,146,131. Patented July 13, 1915.

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E ED STATES PATENT OFFICE.

JOSEPH E. CAMP, OF WASHINGTON, ILLINOIS, ASSIGNOR TO CAMP BROS. 8c 00., OF

WASHINGTON, ILLINOIS, A CORPORATION OF ILLINOIS. I

surron'r non WAGON-JACKS.

Specification of Letters Patent.

Patented July 13, 1915.

Application filed February 7, 1913. Serial No. 746,866.

To all whom it may concern Be it known that I,-JosnPH E. CAMP, citizen of the United States, residing at ashington, in the county of Tazewell and State of Illinois, have invented certain new and useful Improvements in Supports for WVagon-Jacks; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a tilting device for wagon jacks.

It has for one of its objects to provide a device to be placed'beneath the platform of a Wagon jack whose elevating member is adapted to move in a vertical line, whereby said jack may be tilted so that the front axle of the Wagon to be dumped will be caused to move through the chord of an arc described from the center of the rear axle.

By this means the wagon box will have practically no movement in thedirection of its length and the contents of the box can therefore be discharged into a drag or conveyor or other narrow form of receptacle without spilling outside.

A further object is to provide a supporting device to be placed beneath a wagon jack in such a position that said jack can be tilted in either direction so that the wagon to be dumped can be driven upon the jack from either direction and derive the advantages named.

Most wagon dumps include a suitable support upon which a wagon raising portion is carried, said portion being usually inclined at such an angle that the lineof movement of the front wheels of the wagon describes a line corresponding substantially to the chord of an arc whose center is the axle of the rear wheels. The result of this is that the rear end of the wagon will remain in substantially a stationary position so that the grain will notbe spilled outside of the comparatively narrow conveyer or drag used in connection with wagon jacks. But when constructed in this manner the jack cannot be readily set for a certain job. That is to say, in some cases it has been found that considerable advantage would be gained if it wouldbe possible to change the tilt of the lifting mechanism in the opposite direction without the necessity of turning the jaokaround, so that the wagon could approach it from either direction. The advantages may be several. For example, the lifting portion can be more easily and cheaply arranged in an upright or vertical position, 216., so that its line of movement will. be perpendicular tothe ground surface. Again, in placing a jack in position for work the slope'of the ground often makes it difficult to so arrange a jack that rests directly upon the ground, and has a lifting portion working upward at an angle, that it can be made to elevate the wagon properly. More especially, it sometimes occurs that the location of the granary to be loaded into with reference to other buildings or immovable objects is such that the jack, because it is inclined at an angle and because it cannot be reversed, on account of existing conditions with regard to said buildings, is useless. This is because the wagon may only be able to drive onto the jack from one direction and then would be required to back out. v If the jack were re versed in position, on the other hand, the power could not be applied since the horsepower could not be placed the required position to couple with the jack. However,

a jack having a vertically movable portion to receive the wheels of the wagon'can be tilted in either direction without the difliculties named and the power can be placed anywhere so as toconnectwith it. In other words, the jack that is capable of being inclined or tilted in either direction can be placed anywhere and operated under most adverse conditions.

In order that the invention may be fully understood I have provided the accompanying drawing, in which,

Figure 1 shows one of the common forms ofwagon jacks. Fig. 2 shows the device of the invention. Fig. 3 is an end elevation of the wagon jack shown in Fig. 1 with my device shown beneath it and tilting it and, Fig. 4; is an elevation of a part of the jack with the device placed so as to incline the jack in an opposite direction from" that shown in Fig. 3. 1 v

I have illustrated a jack merely in order to show how the means for lifting the wagon is located so as to move vertically when its support rests level upon the ground and I will merely describe enough of it to make its position in connection with the invention readily understood. It consists of two parallel longitudinal sills or stringers A crossconnected at its ends by members B C.

Upon one of the latter is mounted a cylinder D within which is a piston, not shown, adapted through hydraulic pressure to raise a platform consisting of parallel sills E suspended from suitable elevating means but this has all been described in my Letters Patent #909,281, issued January 12, 1909.

The platform which is the subject of the present invention consists of a series of ground members 2 each having a long inclined upper surface 3 and a shorter upper surface 4 inclined at an opposite angle. Mounted upon the surface 3 are two planks 5 and upon the shorter surface is placed a plank 6. The members 2 project beyond the planks 5 while between the plank 6 and the planks 5 is a space 7 within which and pref erably secured upon each end member 2 is secured a U-shaped member or stirrup 7.

In use with the jack illustrated, one of the sills A rests upon the projectingends of the members 2 as shown in Figs. 8 and 4, while the other preferably rests in the stirrups 7 as shown in the figures referred to and as also shown in broken lines in Fig. 2.

It is observed that in the figures the cylin der D of the ack is erected perpendicularly with relation to the plane of the support that carries it. The platform E E for the wheels of the wagon moves vertically being guided by the cylinder. It is observed further, that in Fig; 3 the platform made up of the members 2, 5 and 6 forms a support for the base of the jack the sills A. lying upon the longest upper surface of the members 2, thus inclining the cylinder toward the left as seen in Fig. 3, and the angle is such that the line of travel of the front wheels is the chord of an arc struck from the rear axle of the wagon. The are is shown in broken lines as a: in Fig. 3 and as the travel of the front wheels is practically in this are the rear end of the wagon retains practically a fixed position in the dumping operation.

In order to make the jack a right or left the platform is changed end for end so that the sills A A will lie upon the long sloping surface in either event. Figs; 3 and 4: show the two opposite positions of the jack. The lowest side of the jack is that over which the wagon is brought to the dumping position, the plank 6 being provided as a means of letting the wheels pass on easily after dumping. The stirrup 7 may not be used for receiving the uppermost sill which may merely lie in the space between the plank 6 and the neXt adjacent plank 5.

Other forms of jack can be provided for by a structure similar to that described merely making those changes in the structure that will accommodate the particular form of the base of the jack.

The: whole purpose of the invention is to provide a reversible support for a jack so that any jack may be tilted so that it can be used from either side.

Having described my invention, I claim 1. In combination, a wagon jack comprising a portable platform and a device for lifting the front end of a wagon to be dumped adapted to rise and fall in a line perpendicular to the base line of the platform, and a second platform or base to lie on the ground beneath and to support the first, the vertical measurement of the support differing beneath opposite edges of the platform of the jack whereby to maintain the latter in an inclined position.

2. In. a device'of the nature described, in combination, a portable platform including mechanism for lifting the end of a wagon to bedumped, the lifting portion adapted to rise and fall'in a line perpendicular to the base line of the platform, and a second platform or base beneath and supporting the first, the vertical measurement of the support differing beneath opposite edges of the platform of the said first platform where by to maintain it in an inclined position, said second platform or support having an upwardly slanting approach inclined toward that portion having the greatest vertical measurement.

8. In a device'of the nature described, a platform, points on whose upper surface are at different" vertical positions or heights, in combinationwith a support to rest upon the same held at an angle of inclination by it and including means to lift one end of a wagon to be dumped arranged with respect to the support to have movement whereby the centers of the wheels of said end of the wagon move through substantially the chord of an are described by said wheels in mov ing about the center of the wheels at the other end as a center.

l. In a device of the nature described, a platforn1,-points on whose upper surface are at different vertical positions'or heights, in combination with a removable support to rest upon the same held at an angle of inclination by it and including means to lift one end of a wagon to be dumped arranged with respect to the support to'have movement whereby the centers of the wheels of said end of the wagon move through substantially the chord of an arc described by said wheels in moving about the center of the wheels at the other end as a center.

5. In a device of the nature described, a platform, points on whose upper surface are at different vertical positions or heights, in combination with a support to rest upon the same held at an angle of inclination by it and including means to lift one end of a Wagon to be dumped adapted to have an up and down movement in a line perpendicular to the plane of said support.

6. In a device of the nature described, a platform, points on Whose upper surface are at different vertical positions or heights, in combination With a removable and reversible support to rest upon the same held at an angle of inclination by it and including means to lift one end of a Wagon to be v JOSEPH. E. CAMP;

Witnesses:

B. F. NAFZIGER, JOHN NAFZIGER.

Copies of this patent may be obtained for five cents each, by addressing the G'ommissioner of Patents, Washington, D. O. 

